JEE Main 2022 Chemistry question
Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: The first ionization enthalpy for oxygen is lower than that of nitrogen. Reason R: The four electrons in 2p orbitals of oxygen experience more electron-electron repulsion. In the light of the above statements, choose the correct answer from the options given below.
Answer: (2)
Solution
The first ionisation enthalpy of oxygen is lower than that of nitrogen, because nitrogen has the stable half-filled p-subshell. The four electrons in the 2p orbitals of oxygen do
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